by Deborah Hennenberg

Introduction

Excuse me, is your refrigerator running?  If it is, you better go catch it!

(Ha, Ha, Ha. )

 

You may be wondering how refrigerators are related to math class... Well, have you ever considered the cost of owning one?  Of course there's a one-time fee for buying a refrigerator but there are also additional costs for using one. 

 

Let's take a look at the average cost of a refrigerator over time . . .